Wind-shield tube.



1). B. LEE.

WIND SHIELD TUBE.

APPLICATION IILBD 00125, 1912.

1,08%,031 Patented Dec. 28, 1913.

7 1? 7? asses [27 ran far 9 yaw W. M 0 @w P5? DWIGHT B. LEE, OIE DETROIT, MICHIGAN.

"WIND-SEEM LID TUBE.

Specification of Letters Patent.

.ltatented Bee. 2333?,

Application filed October 5. 1912. Serial No. 724,130.

on whom it may concern o it known that I, lDWIflH'l B. Lee, av n of the United States of America,

llllil'ltl in the city of Detroit and county "Jayne. li latc of Michigan, have invented certain new and useful Improvcnumts in nu'l-rlliicld Tubes, of which the following a. ipeeitication, reference being had. there in lo the accompanying drawings.

ithe invention consists in the construction .u a wind-shield tube made of two U-shaped in! ."JLVS, one member nested in the other, will: n'iarginal flanges at; the ends of the neon ions, by which the two are secured toby the formation of interlocking as more fully hereinafter deal liltltl and. particularly pointed out in the the drawings: Figure 1 is a cross-section through a tube embodying my inven- Fl is a similar section showing the two members detached, before the flanges are rolled into the interlocking bead; I i. 5'; is a CFUSS-SOCilOXl through the tube ordinarily en'iployed in making wind-shield Frames; and Fig. 4- is a front elevation of a n'irnlashield frame of the type known as chair-Minion 'lrame, with glass therein.

.l'In the present state of the art Windshields for automobiles are made of an outer lit-unto in which the glass is heldfwhieh trainee are ordinarily made by taking a pioi'e of seamless tube and shapingjt into secution (shown at A in Fig. 3), the edges ot the glass being adapted to enter the recess B therein. 'lubes of this kind are quite expensive and require being made ol" rather heavy material to stand the strain to which they are subjected.

lily invention is designed to build a tube olf this kind which can be made at. much le 's costt-han the seamless tube construction i which can be made of lighter material, an the reason that I reinforce it with lon- ;.:;ilui:linal stitt'ening beads. In making up any tube I take a flat piece of sheet metal at the desired gage and roll it into a trough ti j 't'vllllptll frame, shown at G in Fig. 2, witn a dow:nvardly-projceting neck-portion l) and lateral flanges E on each side; this forming what, for convenience, it will call the outer member. it also take a strip of flat metal to form a tie-member or tie-strip l! and bend it into Ushape, as shown in F' 2, with lateral flanges G at each side. prefer to form this member F so that the U-portion will nicely enter between the neck-portion D of the outer member C and the flanges, so that. they will extend beyond the flanges I) of the outer member and, by a suitable rolling process, I may bend the flanges G over the flanges E and form the interlocking heads H which will extend longitudinally on each side of the tube and ma terially strengthen and stiffen it, even it it is made of thinner gage than ordinarily em tiloyed in seamless tubes.

Instead of making the tube of circular cross-section as shown in Fig. 1, and in full lines in Fig. 2, I may make it in fiat crosssection, such as shown, for instance. at I in dotted lines in Fig. 2. By forming the neck-portion D and the flanges G and i) in tcrloeked to form the bead, with the U-. shaped portion of the tie-strip F in contact with the nci'ik-portion I), i get a double thickness of metal, plus thebeads, along the greater portion of the point where the glass engages the tube,.and thus prevent bending or buckling, or other distortions ot' the tube, and get a much more serviceable structure than can be made from the seam less tubing. This is particularly true when the tube is used to make the clear vision windshield, as shown in Fig. l, in which case the glass J is unsupported at s upper edge except by the side membm... of the frame.

What I claim as my invention is:

A wind shield tube, comprising an arched outer member having the sides of the arch terminating in outwardly extending flanges, a comparatively shallow U-shaped tie strip titted within the open end of the outer mom-- her and having the sides thereof terminating in outwardly extending flanges, said flanges rigidly interlocking with the flanges of the outer member forming beads, the pertimis the sides of the outer member as wgus hemp; rlgldly held agznnst m presence of two WlEElGSSGS;

218G111? the engaging 1301'" izhe wier membar and messes:

JAMES VVHITIEMOEE, JAMES P. BA'PRZQ iii.

1 au'h'ington. I11. 53.

In. testimony whereof affix my signature 

